Registry, engineering, and operating metrics shown on a consistent EIA basis.
| Metric | South Field Energy | Tenaska Westmoreland Generating Station |
|---|---|---|
| 1,210.4 MW | 1,134 MW | |
| Natural Gas Fired Combined Cycle | Natural Gas Fired Combined Cycle | |
| South Field Energy, LLC | Tenaska Pennsylvania Partners, LLC | |
| 4 | 3 | |
| 7.87 TWh | 6.37 TWh | |
| 68.1% (2025) | 63.4% (2025) | |
| #60 of 538 | #73 of 538 | |
| 2026-06 | 2026-06 |